TAPPI T460 Gurley Air Resistance

Testing Standard:

TAPPI T460 Air Resistance of Paper (Gurley Method)

Standard Number
TAPPI T460

Standard Title
Air Resistance of Paper (Gurley Method)

Overview:

TAPPI T460 Test Method measures the air resistance of paper and can help identify issues such as filtering efficiency, vacuum cup usability in manufacturing, absorbency, and more. Purple Diamond Testing offers TAPPI T460 Air Resistance of Paper (Gurley Method) as part of our packaging compliance and validation services.

Rationale:

TAPPI T460 – Air Resistance of Paper (Gurley Method). Data is obtained by measuring the time it takes for a certain volume of air to pass through the material. Some materials require a high air resistance which will allow the use of vacuum opening or lifting devices mainly used in manufacturing and packing of corrugated boxes. With the air resistance of paper influenced by the fiber type, length, hydration, orientation, compaction, and sizing, the data obtained from this test can verify the specification set by the manufacturer. Recycled paper generally has fibers that are ½ the length of virgin paper and therefore the porosity can be affected.

Key Points:

Related Standards:

Accreditations

Achieving ISO 17025 Accreditation is the pinnacle in third-party laboratory testing accreditation. It confirms that the facility has management, quality, and technical systems in place to ensure accurate and reliable analyses.
ISTA is revered as the certification standard for package testing for distribution. ISTA’s Testing Protocol remains a series of testing methodologies and standards well recognized within the packaging community.
A select few companies are authorized by PHMSA as an approved third-party packaging testing laboratory in accordance with Hazardous Materials Regulations, critical to ensuring safe transport of dangerous goods.

Affiliations

With over 12,000 standards globally, ASTM International’s fully transparent standards development enhances performance and confidence in consumer choices.
The Technical Association of Pulp and Paper Industry’s peer-reviewed standards improve production through operational methods and industry recognized best practices.

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